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| Metal & It's Uses Chart |
Spectrum Chart - 289 : Metal & It's Uses
1. Aluminium - Aluminium (Al) is a silver,
soft metal with an atomic number of thirteen and thirteen protons in
the nucleus. It constitutes about eight percent of the Earth's land
mass. It is the most abundant mineral on Earth after oxygen and
silicon. Aluminium is globally the most used metal that does not
contain iron. Aluminium has many uses. It is used in overhead power
cables. It is also widely used in window frames and aircraft bodies.
It is found at home as saucepans, soft drink cans and cooking foil.
Aluminium is also used to coat car headlamps and compact discs.
2. Copper - Copper (Cu) has an atomic
number of twenty-nine. This reddish member of the metals group has
twenty-nine protons in the nucleus and is a very important element
for commerce, making it one of the most important metals. Copper
occurs in nature in its native form. Copper is fully recyclable
without breakdown in quality. Copper is used in electrical wiring. It
can also be shaped into various parts. It can be used in a heat sink.
It is also used in pipes carrying water, because it does not corrode.
When copper is mixed with tin, bronze is made.
3. Iron - Iron (Fe) has an atomic number
of twenty-six. This highly abundant member of the metals group has
been in use since ancient times. Iron is the sixth most common
element in the universe. Iron is found in both the inner and outer
core of Earth. Pure elemental iron is actually quite soft. Blood's
deep red colour is due to iron-rich proteins, which are found in all
living organisms.
4. Gold - Gold (Au) has an atomic number
of seventy-nine and seventy-nine protons in the nucleus of its atom.
This typically yellow metal is the most malleable of the metal
elements and alloys readily with other metals to form different
coloured variations. Gold is prized for jewellery making and for
investing, it is actually a good conductor of heat and electricity
and therefore has electronics applications. Gold has also uses in
medicine, gourmet foods and the commercial chemistry industry.
5. Lead - Lead (Pb) has an atomic number
of eighty-two. It is a highly malleable member of the metal elements
and is highly resistant to corrosion. Lead is a shiny, grey-blue poor
metal. It is a very poisonous and heavy metal. Lead is most commonly
found on Earth in ores of zinc, silver or copper. The mineral with
the highest concentration of lead is galena, which contains 86% lead.
It has uses in car batteries, construction industry, small firearms
manufacturing, the production of sailboat ballasts and other artistic
purposes.
6. Mercury - Mercury (Hg) has an atomic
number of eighty. This silvery metal is a liquid at room temperature,
the only metal to have that property and historically is known as
quicksilver. The most common deposits globally that contain mercury
are cinnabar deposits. Mercury has long been used in thermometers and
dental fillings and its gaseous form is used in fluorescent lights.
Due to health concerns, mercury's applications are slowly being
replaced by less toxic materials.
7. Silver - Silver (Ag) has an atomic
number of forty-seven. This highly valuable metal is slightly harder
than gold and has the highest electrical conductivity of any of the
metals. Silver is an even better electrical conductor than copper,
but its high cost makes it less attractive for electrical wiring. Of
all the metals, silver also has the highest thermal conductivity.
Throughout history, silver has been used in coin making, jewellery,
adornments, mirrors and photo-optics, musical instruments, dentistry
and medications, photography and more.
8. Nickel - Nickel (Ni) has an atomic
number of twenty-eight. This ferromagnetic member of the transition
metal group is a silvery-white, highly polish able material. Roughly
six percent of the world's nickel is used to nickel-plate objects to
protect them from corrosion. Nickel is used in metal alloys.
Stainless steel contains nickel. Nickel is also used in nichrome, a
name for a nickel-chromium alloy. Nickel is used in coins such as
nickels. It is used in magnets. Nickel is used in special expensive
alloys called superalloys.
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